Mutters (7)
I believe the answer is:
mumbles
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">mutters</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know this)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for mumbles that I've seen before include "South Wales resort - talks indistinctly" , "Comes out with poorly" , "Swansea area" , "Speaks indistinctly" .)